Pneumatic-tire-inflating apparatus



F. N. COOLEY ET AL v PNEUMATIC TIRE INFLATING APPARATUS Oct. 23, 1923.

Fiied May 8, 1922 INVENTOR ATTORNEY Patented oct. 23, 1923.

UNITED STATES PATENT o R. COOLY ASSIGNOR T SAID FRANK N. COOLEY.

IPNEMATIC-TIREINFLATING APPARATUS.

Application led May' 8,

States, residing at Seattle, in the county of i King and State of Washington, have invented certain new and useful Improve-v ments in Pneumatic-Tire-Inflating Appa' ratus, of which the Yfollowing is lav specification.

This invention relates to tireliniating ap- 1922. Serial No. 559,138.A

the same. The hose 'is provided at. its outlet end with-any ordinary or suitable tire-valve coupling, not shown, provided with a .check valvewhich serves to prevent the escape of air when the coupling is disconnected from a tire-valve.

FFICE. Y.

FRANK N. cooLEY AND GEORGE n. cooLEY, or .ksEArTLn WASHINGTON; SAID GEORGE The casin 5 is provided in ,axial align-L Y eo ment with t e bore 6 and above the same with a'chamber 15 of greater diameter than the bore to receive in its upper end a plunger paratus and its'object is the-provision of,` 16. Between the plunger and a'collar 17 eiicient vapparatus of this character which may be conveniently employedl to supply pneumatic tires With air to a predetermined pressure.

Other more specific objects andjadvantages of the invention will appear in the following description.l Y rlhe invention consists in the novel vconstruction, adaptationI and 'combination of parts hereinafter described and claimed.

In the accompanying drawings,- Figure 1 is a front elevation of a stand yin which is mounted apparatus embodying our invention. Fig. 2 is a vertical longitudinal section of the upper portion of Fig. 1. Fi 3 is a transverse section taken substantia ly through 3-5-3 of Fig. 2. Fig. L is a detail sectional'- view illustrating the settable devices forI governing the pressure regulator.

In said drawings, the reference numeral 5 represents a casing which is provided with a vertically disposed bore '6 for a cylindrical Q tion between a duct 91 leading` into the pask sage 9 and a source or reservoir, not shown in the drawlng, of compressed air. 13 reprethereto a flexible hose 14 through which air is delivered to a pneumatictire for iniating valve 7 having intermediate its length a pe sentsl a pipe connecting with the passage 10, said pipe being adapted to haveattached.

rigid upon the valve' is `a helical spring ,18 which tends to yieldingly retain the collar against 'the bottom of the spring-containing chamber and have the valve in the position in which it is represented in'Fig. 3. The plunger 16 has an eXtension 19 formed with teeth 20l'to constitute a rack vwhich is engaged with a spur pinion' 21.

This pinion is rigidly mounted upon a stand such as 24.

The pinion shaft 22 is journaled in bearings 25 and 26 which are respectively'provided in a bracket attachment provided interiorly of the shell and in the rear wall 27 of the shell.

Secured to and extending radially from the rear end of said shaft is an arm 28 which above the shell extends forwardly as at 29.

Secured to or formed integral with the rear end of the shell is a flange 30. disposed concentrically with respect to the shaft 22. Engageable against the inner surface of said flange is a block 31. which is secured to the offset end 320i1 a rod 33 extending into a i tubular handle 34 provided-on the arm part 29. The' rod 33 has secured to its upper extremity a lpush button 35 which protrudes from the outer end of the handle.

lhorizontal shaft 22 disposed axially `of a. cyllndrical shell 23.which, together with, the aforesaid casing, is secured -to a supporting The block 31 is frictionally held in eny.

button 35 and a bushing 37 secured Withinthe inner end of the handle 34.

38 represents a lfluid-pressure gauge of any known or suitable construction secured withinthe shell 23 and concentrically thereof and is operatively connected by means of a tube 39with the passage 10.

v As illustrated, said gauge is provided withy loc a hand a() for pointing oit upon an arcuate scale ll-l provided on the gauge face the pressure of air 'obtaining at the delivery side of f indate a tire.'

f io

Y lit 42 represents a pointer secured to the arm part 29 to indicate with respect to the markings ofscale 41. the pressure which itis desired to deliver air through the hose 1 4.- to

To employ the above `described apparatus to eect the delivery of air to inate a tire to a predetermined 1 pressure, vas eighty pounds for example, the operator adjustably moves the arm 28 through the medium of the handle 34 to present the pointer 42 at the f .scale mark denoted 80 on the gauge p sagev 10.

face;

'llo facilitate the positioning of the ointer the operator disengages the friction b ook 31 from the casing iangey 30 by exercisingay vated into a position to stop the ,How of air i from the 'passage 9f into the delivery pas- When the *air pressurein the passagellO is below that `ot the springvs power, ,as indicated by the pointer 42, the spring serves to,

' restore the valve into the inoperativeposilio discharge port with .the casing bore below tion in which it is represented'in Fig. 3.

What we claim, is,- i 1. lin pneumatic tire-,inflating apparatus,

the combination 'of a pressure-reducing valve, a casing for said valve and provided with a supply port and ya dischargeport. a

hy-pass communicatively connectingl said said valve, a scale of pressure indicating marks, a plunger, a' spring interposed between said plunger and the Valve Jfor yieldingly retaining the-latter in position to ai"- )foijd a passage between said ports, a rack rigid with said plunger. a shaft, a pinion mounted on the shaft and engaging the rack, i

an armv connected to said shaft for-regulating said springr through'the medium otthe rack and pinion, and a pointer vvcarried by said arm and arranged do, cooperate with the scale for indicating the positioningyof the arm to edect predetermined adjustments ofy the spring, v j

'2.1m a pneumatic/ tire-intlating Aapparatus, the combination of acylindrical valve provided with an air passage, acasing havinvia?? ing a vertically-dis osed here to receive. said valve and provide with a supply port and a discharge port at di'ametrically opposite sides ot theV bore, a luy-pass eoinmunicativelyconnecting said discharge port with' said bore below thevalve, la scale of pressupe indicating marks, a plunger, a spring interposedbetween saidplunger and the valve for yieldingly'retaining the latter in position to have the passage thereof in register with both of said ports, a rack rigid with saidl plunger, a shaft, a pinion mounted on the shaft and engaging the rack, an arm connected to said shaft for regulating said spring through the. medium of the rack and pinion,'aiid a pointer carried by said arm and arranged to cooperate with the scale for indicating the positioning of the arm to etifect predetermined adjustments of the sprin 3. n a pneumatic tire-inflating apparatus,

iov

the combination of a cylindrical valve provided with an airgpassage` a casing having a vertically disposed bore to -ceive said valve and provided with a supply port and a discharge port at diametrically opposite sidesy of the bore, a by-pass'comin'unicatively connecting said discharge port with said bore` below the valve, a fluid pressure gauge op' erativelyconnected with said discharge port, said gauge bei/ng provided with a scale of pressure indicating marks, a plunger, a spring interposed between said plunger and the valve for'yieldingly retaining the latter in position to have thepassage thereof in register with both, of said ports, a rack rigid with said plunger, a shaft, a pinion mounted on the shaft and engaging the rack, an arm connected to said shaft for regulating said spring through the medium of therack and pinion, a pointer carried by said arm and arranged to cooperate with the gauge scale ,for indicatingthe positioning of the arm to Ieitect predetermined 'adjustments of the springend means for releasably securingthesame in selected positions.

a. lin. a pneumatic tire-inating apparatusthe combination oit a cylindrical valve provided with an'air passage, a casing having a' vertically disposed bore to receive said valve and provided with a supply port and ies Mtl)

a discharge port at diametrically opposite sidesof the bore, a b v-pass communicatively connecting saidl discharge port with said bore below the valve, a fluid pressure gauge operatively connected with saidv discharge port, said gauge being provided with a scaleV oi pressure indicating marks, `a plunger, a spring interposed between said plunger and` the valve for yielding-ly retaining the latter in position to have the passage threof in registerwith both of said ports, a rack rigid with said plunger, a shaft, a pinion mounted on thelshaitt and engaging Lthe rack, an arm ias connected Vto said shaft for regulating said Signed et Seattle, Washington, this 24th spring through the medium ofthe rack and day of 'April9 1922 pinion, a pointer carried by said arm and FRANK N. COOLEY.

arranged to cooperate With the gauge scale GERGE R. CULEY. 5. for indicating the positioning of the arm tox Witnesses: l

eect predetermined adjustments of the PIERRE BARNES,

spring.

MARGARET G. Surrm. 

